The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2016
Filed:
Jun. 30, 2009
Applicant:
John S. Lettow, Washington, DC (US);
Inventor:
John S. Lettow, Washington, DC (US);
Assignee:
VOBECK MATERIALS CORP., Jessup, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/00 (2006.01); C01B 31/04 (2006.01); F28F 21/02 (2006.01); H01L 23/373 (2006.01); B82Y 30/00 (2011.01); C08J 5/00 (2006.01); C08L 21/00 (2006.01);
U.S. Cl.
CPC ...
C08K 3/0033 (2013.01); B82Y 30/00 (2013.01); C01B 31/0438 (2013.01); C01B 31/0484 (2013.01); C08J 5/005 (2013.01); F28F 21/02 (2013.01); H01L 23/3733 (2013.01); H01L 23/3737 (2013.01); C08L 21/00 (2013.01); Y10T 428/24942 (2015.01);
Abstract
Articles comprising a composition comprising a polymeric binder and at least one carbonaceous filler, wherein the article has a compositional gradient such that the concentration of the filler is increased or decreased in at least one direction in the article. Methods for their preparation and structures comprising the articles are also described.